Three-zonal Wall Function for k-ε Turbulence Models

• Autorzy: Chmielewski M. , Gieras M.
• Języki publikacji: EN

Abstrakty

EN

Most commercially available wall functions for k-" turbulence models base on the two-zonal near-wall flow division assumption. Viscous and log-law sublayers are distinguished. In this article the three-zonal wall function concept with a buffer sublayer is developed. The aim of this new wall function is to improve the mean streamwise U+ velocity profile. The proposed wall function is validated on backward-facing step experimental data. Physical implications of the model performance are also discussed.

Słowa kluczowe

EN

wall functions; turbulence modeling; near-wall treatment

• Wydawca: Institute of Bioorganic Chemistry Scientific Publishers OWN, Polish Academy of Sciences
• Czasopismo: Computational Methods in Science and Technology
• Rocznik: 2013
• Tom: Vol. 19, No. 2
• Strony: 107--114
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Chmielewski M.

• Warsaw University of Technology, Institute of Heat Engineering Nowowiejska Street 21/25, 00-665 Warsaw

autor

Gieras M.

• Warsaw University of Technology, Institute of Heat Engineering Nowowiejska Street 21/25, 00-665 Warsaw

Bibliografia

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